Closed gas stove and valve therefor



2.19 1637,870 A 27 F. G. NICOLAUS CLOSED GAS STOVE AND VALVE THEREFOR I Fild Jan. 19. 1927 3 Sheets-Sheet l Filed Jan. 19. 1927 :s Sheets-Sheet 2 Aug- 2 1927- F. e. NICOLAUS CLOSED GAS STOVE AND VALVE THEREFOR Filed Jan. 19. 1927 v 3 Sheets-Sheet 3 Pmma Au 2, 1927.

UNITED STATES.

PATENT ori ice.

IBEDEBIC G. NIOOLAUS, OF CLEVELAND, OHIO, ASSIGN'OB '10 AMERICAN STOVEOOH- PANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF saw was.

CLOSED GAS STOVE AND VALVE THEREFOR.

Application filed January 19,1927. Serial No. 162,148.

This invention relates to certain improvements in closed gas stoves and valves therefor, and the invention pertains to embracing within the closure burners, gas manifold and controlling valves.

I have found from actual experience that the ordinary sha ed as valve for controlling the flow of no], if embraced by a 010: sure that also contains the burners they are subjected to rather a high temperature, and they have a tendency to lock tight and prevent them being operated for controlling the flow of gas. C

Therefore one ob ect of my present 1nvention is to construct a gas valve that is its wall, and attach a gas valve housing to a ing an elongated slot and a handle extending from the gas valve through the said wall whereby it can be freely moved vertically; Anotherobject of the present invention is in the specific construction of the handle and the gas valve whereby they interlock I substantially in the manner shown, the handle being accsesible through the wall of the structure. v

A further object of the present invention is to construct that part of the handle that is attached to the gas valve with a curved outer surface, the curved outer surface passing through a slot in the wall of the closed structure and a handle attached to the curved structure intermediate its ends whereby it is adapted to be operated in the manner hereinafter described.

Further objects of the present invention will appear from the following description:

Figure 1 is a top plan view of a part of the range with the top plates removed.

Figure 2 is a perspective view of a part the manifold, the wall of said closure havthe operating adjacent the wall 1 of a gas stove or range, the same being 'closed, showing the present improvement applied thereto.

Figure 3 is a vertical section of the front portion of Figure 1, the'handle having a vertical movement. Figure 4 is a horizontal section provement showing the that the gas valve and its i/ontal movement.

Figure 5 is an enlarged sectional view similar to Figure 3, the same showing the burner'and manifold communicating with the valve housing, the handle having a vertical movement. Figure 6 is a vertical sectional view showing the parts arranged so that the handle is moved in a horizontal direction.

Figure 7 isa horizontal sectional view of Figure 6, with the parts so arranged that the handle moves in a horizontal direction.

of my imarts arranged so andle have a hor- In carrying out the present improvement a closed structure is provided with a front wall 1, an end wall 2, the rear wall (not shown) being also closed. The end wall next to the oven not shown, is also closed whereby a closed structure isprovided.

Located in this closed structure is a manifold 3, the sald manifold extending parallel the outer wall 1, and adjacent said wall. A-

valve housing 4 is located within this housing and is immediately below the manifold 3, thesaid valve housing being also adjacent the wall 1 of the closure. This outer wall 1 is provided with vertical slots 5 as shown in Figure 2,'for the purpose of enabling the curved portion 6 that is a part of handle to extend outwardly through, and to permit the curved portion to be vertically oscillated. This curved portion has its inner end 7 reduced and made circular in shape to fit within a curved wall 8. that extends longitudinal the valve 9. This curved wall 8 is in that portion with a slot 10 into which a reduced part 11 of the curved portion 6 passes. Ascrew 12 passes through an opening 13 made in the circular part 7 and into the valve 9. From the foregoing it will be understood that the curved wall 8 serves to lock the curved portion 6 to the valve and to prevent it from having any independent movement. In the construction here shown the curved portion 6 has a prowith the shutter portion of the burner tical or a horizontal direction, while at the manifold 21. r

The burner 1' that is embraced in the housing 1 (the heat from the .burner or burners being enclosed in the same structure with the valve housing and its valve) necessarily raises the temperature of the valve and the valve housing. As stated in the first part of this specification,'I have found that the ordinary elongated gas valve has a ten-. dency to lock and does look when it is placed inside of the closed housing. I find, however, by changing theshapeof the valve does not lock and that at all times it moves freely. This may be due to the fact thatwhen the said housin and the valve become expanded from heat due to the relative suddenness of the an le, that the valve is slight- I forced outwar against its spring 22, and thereby is prevented from becoming locked. Nomatter what the reason is, I find it to be true that when this valve is enclosed in the said housing and subjected to the heat of the burner, it will move freely at all times and have no tendency to locking.

The curved projecting portion 6 of the handle passes through the slot fimade in the wall 1, and the slot is made of such width and the curved portion 6 of such thickness as to give the appearance of substantially closing the said slot.

By means of a structure such as herein described, it will be observed that a gas stove is produced in which neither the valves, the manifold nor the burners are visible, producing a gas stove having an improved appearance. It will be observed that the one part that is visible from the outside of the closed structure is the handle 15 with the small part of the curved portion which lies between the handle and the gas valve. In other words I am enabled to construct a gas stove in which none of the operating parts are outside of the closed structure with the exception of the handles for controlling the gas valves 9. 1

It will be observed from the foregoing that I have disclosed constructions whereby the handle 15 may oscillate either in a versame time the vertical direction is the preferred construction.

Attention is directed to the fact that the valve controlling lever 23 controls the valve for the gas that is fed to a manifold 24 with its inner end connected with the oven burner 25. The manifold 26 thatconnects with the oven manifold 24, it will be noticed, doubles outward and then extends inward into the mouth of the manifold 24.

The manifolds 26 as shown, have their inner ends doubled on themselves and their inner extremities connected with the burners 1 whereby the gas being fed to these burners is thoroughly mixed with air before the gas issues from the burners 1.

Although I have described in detail the present improvement, I wish it understood that the construction may be varied without departing from the spirit of the invention so longas the variation is within a fair interpretation of the appended claims.

what I desire to claim and secure by Letters Patent is:

1. A gas stove comprising a closed structure, a manifold in the closed structure extending parallel the front wall of the closure and adjacent said wall, a gas valve housing within the closure connected with the said manifold, a burner located within the said closure, the valve housing having com- Having thus described my invention,

munication with the burner, a vlave in thesaid housing, the front wall of the closure having an elongated opening and a handle located outside of the closure and having a portion extending through the said open ing, its inner end connected with the said valve, the handle having an intermediate elongated curved ortion extending through the said elongated opening, the parts operating for the purpose described.

.2. A gas stove comprising a closed structure, a. manifold within the said structure and extending parallel the outer wall and adjacent thereto, a valve housing communicating with the manifold, the outer wall having a 'verticall handle located outside of the said wall and having part thereof passing through the said elongated opening with its inner end connected with one end of the said valve, the handle intermediate its ends having a vertically elongated curved portion extending through the said vertical opening of elongated opening, a

I the said housing, one end of the valve havinga projecting flange forming a socket, and

a handle located outside of the outer wall of the housing and extending therethrough;

its inner end enlarged and received by the said socket, the flange of the socket out out -to receive an intermediate reduced portion of the handle, the parts operating as de- 15 scribed.

In testimony whereof I hereunto afiix my signature.

FREDERIC G. NICOLAUS. 

